I found this on the web:
1. Remove with heated iron into absorbent paper towel
2. Sponge with a small amount of dry-cleaning solvent.
Blot. (Use small amounts to prevent any possible damage
to sizings, backings or stuffing materials. Do not use
gasoline, lighter fluid, or carbon tetrachloride).
3. Mix one teaspoon of a neutral detergent (a mild
detergent containing no alkalies or bleaches) with a cup
of luke-warm water. Blot.
This article was written by Anne Field, Extension
Specialist, Emeritus, with reference from the Georgia
Extension bulletin, How to Care for Carpets and Rugs, the
Hoover Company, Nebraska Extension bulletin Carpet Care -
Cleaning and Stain Removal, the Carpet and Rug Institute,
Allied Fibers and Plastics Inc. and DuPont Clean Up